6.USB connectors (10-1 pin USB78, USB910, USB1112)

These connectors are for USB 2.0 ports. Connect the USB module cable to any of these connectors, then install the module to a slot opening at the back of the system chassis. These USB connectors comply with USB 2.0 specification that supports up to 480 Mbps connection speed.

M3A78-EM

USB78

USB+5V USB_P8- USB_P8+ GND NC

1

GND

USB_P7+

USB_P7-

USB+5V

NC

GND

USB_P10+

USB_P10-

USB+5V

USB910

1

GND

USB_P9+

USB_P9-

USB+5V

-P12+ USB+5VP12__GND USBUSB NC USB1112

1

USB+5V-P11+GND

P11_USB_USB

M3A78-EM USB 2.0 Connectors

Never connect a 1394 cable to the USB connectors. Doing so will damage the motherboard!

The USB 2.0 module is purchased separately.

7.Optical drive audio in connector (4-pin CD)

This connector allows you to receive stereo audio input from sound sources such as a CD-ROM, TV tuner, or MPEG card.

CD (black)

M3A78-EM

Channel Audio Right

Ground

Ground

Channel Audio Left

M3A78-EM Internal Audio Connector

ASUS M3A78-EM

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